LTC2802CDE#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2802CDE#TRPBF is a single-driver, single-receiver RS-232 transceiver in a 12-lead (4mm × 3mm) plastic DFN package. It operates from a VCC supply of 1.8V to 5.5V and supports data rates up to 1Mbps with a 250pF/3kΩ load. The device includes an integrated DC-to-DC converter generating ±7V and -6.3V rails. Key electrical parameters include a typical VCC supply current of 2.3mA in normal mode, 1µA in shutdown, and 15µA in receivers-active mode. The logic supply pin VL allows independent interfacing with logic levels from 1.8V to 5.5V.

Drivers, Receivers, Transceivers Feature Summary

• Integrated DC-to-DC converter eliminates external charge pump components
• Low-power modes including 1µA shutdown and 15µA receivers-active states
• Logic supply pin enables level shifting independent of main supply voltage
• High ESD protection rating on RS-232 interface pins

Drivers, Receivers, Transceivers Applications

• Battery-powered systems requiring extended life
• Computers and consumer electronics diagnostic ports
• Microprocessor interfaces with varying logic voltages

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'C' grade designation corresponds to the commercial temperature range of 0°C to 70°C as specified in the ordering information table. Ensure the DFN-12 package footprint matches the design requirements before procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring a single RS-232 channel with high-speed operation up to 1Mbps. Choose the CDE variant for commercial temperature ranges and DFN-12 packaging. Consider the IDE variant if operation down to -40°C is required. Verify that the external inductor and capacitor values meet the minimum specifications for the internal switching regulator.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2801 family of RS-232 transceivers. It shares architectural similarities with the LTC2801, LTC2803, and LTC2804 models. The primary distinction lies in the number of drivers and receivers provided, with the LTC2802 offering one driver and one receiver configuration within the compact DFN-12 package format.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: None identified in official documentation.

Drivers, Receivers, Transceivers FAQ

How does the VL pin function relative to VCC?

The VL pin provides a separate logic supply ranging from 1.8V to 5.5V, allowing the device to interface with different logic levels independently of the VCC supply voltage.

What is the maximum data rate supported by the LTC2802?

The LTC2802 supports a maximum data rate of 1Mbps when driving a load of 250pF and 3kΩ.

What are the power consumption characteristics in shutdown mode?

In shutdown mode, both VCC and VL supply currents are reduced to approximately 1µA, placing both driver and receiver outputs in a high-impedance state.